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Daniil050
@Daniil050
July 2022
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Решите 2 задачи ( 1 если можно) пожалуйста
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fatt52
Verified answer
426) P=25*10^3 Вт V=100 м3 po=800 кг/м3 h=6 м t=8*60=480 c η=?
===
η=Ап/Аз=m*g*h/(P*t)=po*V*g*h/(P*t)=800*100*10*6/(25*10^3*480)=0.4 (40%)
===========
427) m=5*10^3 кг h=15 м P=10*10^3 Вт η=0,8 t=?
η=m*g*h/(P*t)
t=m*g*h/(η*P)=5*10^3*10*15/(0.8*10*10^3)≈94 c (1.5 мин)
======================================
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Answers & Comments
Verified answer
426) P=25*10^3 Вт V=100 м3 po=800 кг/м3 h=6 м t=8*60=480 c η=?===
η=Ап/Аз=m*g*h/(P*t)=po*V*g*h/(P*t)=800*100*10*6/(25*10^3*480)=0.4 (40%)
===========
427) m=5*10^3 кг h=15 м P=10*10^3 Вт η=0,8 t=?
η=m*g*h/(P*t)
t=m*g*h/(η*P)=5*10^3*10*15/(0.8*10*10^3)≈94 c (1.5 мин)
======================================